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Which of the following compounds on bein...

Which of the following compounds on being heated with a primary amine and alcoholic `KOH` will form a carbylamine ? .

A

`C CI_(4)`

B

`CHCI_(3)`

C

`CH_(2)CI_(2)`

D

`CH_(3)CI`

Text Solution

Verified by Experts

The correct Answer is:
B
Aliphatic as well as aromatic primary amines form carbylamines (or isocyanides) when heated with chloroform and ethanolic postassium hydroxide.
`overset(RNH_(2))underset(AgNH_(2))(or)+CHCl_(3)+3KOH overset("ethanol")underset(Delta)rarr overset(RNC)underset("Carbylamine")underset(ArNC)(or)+3KCl+3H_(2)O`
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Knowledge Check

  • Which of the following compounds gives a primary amine on readuction ?

    A
    Nitroalkane
    B
    Oximes
    C
    Alkyl cyanides
    D
    All of these

  • Which of the following compounds cannot be identified by carbylamine test?

    A
    `CH_(3)CH_(2)NH_(2)`
    B
    `CHCl_(3)`
    C
    `C_(6)H_(5)NH_(2)`
    D
    `C_(6)H_(5)-NH-C_(6)H_(5)`

  • Which of the following compounds cannot be identified by carbylamine test?

    A
    `CH_3CH_2NH_2`
    B
    `CHCl_3`
    C
    `C_6H_5NH_2`
    D
    `C_6H_5-NH-C_6H_5`